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The calculated electron mobility for a graphene nanoribbon as a function of applied electric field has been found to have a large threshold field for entering a nonlinear transport regime. This field depends on the lattice temperature,…

介观与纳米尺度物理 · 物理学 2015-05-27 Danhong Huang , Godfrey Gumbs , O. Roslyak

This work studies the influence of an external magnetic field on hadron yields and fluctuations in a hadron resonance gas by performing calculations within an updated version of the open-source Thermal-FIST package. The presence of the…

高能物理 - 唯象学 · 物理学 2024-10-02 Volodymyr Vovchenko

The effect of substrate bias and surface gate voltage on the low temperature resistivity of a Si-MOSFET is studied for electron concentrations where the resistivity increases with increasing temperature. This technique offers two degrees of…

介观与纳米尺度物理 · 物理学 2009-11-07 A. Lewalle , M. Pepper , C. J. B. Ford , E. H. Hwang , S. Das Sarma , D. J. Paul , G. Redmond

We study hydrodynamic thermal transport in high-mobility two-dimensional electron systems placed in an in-plane magnetic field, and identify a new mechanism of thermal magnetotransport. This mechanism is caused by drag between the electron…

介观与纳米尺度物理 · 物理学 2024-12-17 Alex Levchenko , A. V. Andreev

We study the effect of an external magnetic field on the transport properties of a quantum dot using a recently developed extension of the functional renormalization group approach to non-equilibrium situations. We discuss in particular the…

介观与纳米尺度物理 · 物理学 2007-07-03 Riccardo Gezzi , Andreas Dirks , Thomas Pruschke

We show that the tunnel coupling between semiclassical states localized in different minima of a smooth random potential increases when magnetic field is applied. This increase originates from the difference in gauge factors which electron…

凝聚态物理 · 物理学 2009-10-28 M. E. Raikh , L. I. Glazman

We study influence of image forces on conductance of ferroelectric tunnel junctions. We show that the influence of image forces is twofold: i) they enhance the electro-resistance effect due to polarization hysteresis in symmetric tunnel…

介观与纳米尺度物理 · 物理学 2017-05-24 O. G. Udalov , I. S. Beloborodov

In this work we study magnetotransport properties in electronic double layers of strongly correlated electron liquids. For sufficiently clean high-mobility samples, the high-temperature regime of transport in these systems can be described…

介观与纳米尺度物理 · 物理学 2019-09-11 S. S. Apostolov , D. A. Pesin , A. Levchenko

We study the role of non-locality of exchange in a neutral zigzag graphene nanoribbon within the $\pi$-orbital unrestricted Hartree-Fock approximation. Within this theory we find that the magnetic features are further stabilized for both…

介观与纳米尺度物理 · 物理学 2011-04-18 Jeil Jung

The features of electric transport in the powder samples consisting of the nanosize 2D-MoS2 flakes with different number of layers have been studied under the conditions of uniaxial pressure. There have been measured current-voltage…

介观与纳米尺度物理 · 物理学 2024-07-29 V. V. Vainberg , O. S. Pylypchuk , V. N. Poroshin , M. V. Olenchuk , G. I. Dovbeshko

The interplay of inertia and deformability has a substantial impact on the transport of soft particles suspended in a fluid. However, to date a thorough understanding of these systems is still missing and only a limited number of…

软凝聚态物质 · 物理学 2014-07-08 Timm Krueger , Badr Kaoui , Jens Harting

We consider spin polarized transport in a ferromagnet-insulator/semiconductor/insulator-ferromagnet (F1-I-S-I-F2) junction. We find that the spin current is strongly dependent on the spin configurations, the doping and space charge…

介观与纳米尺度物理 · 物理学 2010-06-22 Yue Yu , Jinbin Li , S. T. Chui

The influence of carrier density on magnetism in a zigzag graphene nanoribbon is studied in a $\pi$-orbital Hubbard-model mean-field approximation. Departures from half-filling alter the magnetism, leading to states with charge density…

介观与纳米尺度物理 · 物理学 2011-01-31 J. Jung , A. H. MacDonald

Using an isospin- and momentum-dependent transport model, we examine the effects of an electric field induced by a variable magnetic field on the \pi^{-}/\pi^{+} ratio in central to peripheral heavy-ion collisions at beam energies of 400…

核理论 · 物理学 2016-08-03 Gao-Feng Wei , Shi-Hai Dong , Xin-Wei Cao , Yun-Liang Zhang

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the ferromagnetic elements. Whereas the contrast in…

介观与纳米尺度物理 · 物理学 2009-11-11 Arne Brataas , Gerrit E. W. Bauer , Paul J. Kelly

Conversion of mechanical forces to electric signal is possible in non-centrosymmetric materials due to linear piezoelectricity. The extraordinary mechanical properties of two-dimensional materials and their high crystallinity make them…

材料科学 · 物理学 2018-07-11 Habib Rostami , Francisco Guinea , Marco Polini , Rafael Roldán

We derive an expression for the drag rate (i.e., interlayer momentum transfer rate) for carriers in two coupled two-dimensional gases to lowest nonvanishing order in the screened interlayer electron--electron interaction, valid for {\sl…

凝聚态物理 · 物理学 2009-10-28 Karsten Flensberg , Ben Yu-Kuang Hu

We show that Coulomb drag in hydrodynamic bilayer systems leads to additional viscosity terms in the hydrodynamic equations, i.e., the drag and drag-Hall viscosities, besides the well-known kinematic and Hall viscosities. These new…

介观与纳米尺度物理 · 物理学 2023-03-29 Eddwi H. Hasdeo , Edvin G. Idrisov , Thomas L. Schmidt

Both negative magnetoresistance and nonlinear magnetoresisitance were observed in silicon strip nuclear radiation detector in room temperature if we applied high magnetic field intensity in different direction. This result is different with…

仪器与探测器 · 物理学 2016-07-01 Fangcong Wang , Haixia Li , Hui Guo , Xiaolong Fan , Zhankui Li

We develop a low-temperature, long-wavelength theory for the interfacial spin Seebeck effect (SSE) in easy-axis antiferromagnets. The field-induced spin-flop (SF) transition of N\'eel order is associated with a qualitative change in SSE…

介观与纳米尺度物理 · 物理学 2020-07-29 Derek Reitz , Junxue Li , Wei Yuan , Jing Shi , Yaroslav Tserkovnyak